Nonmetallic building materials Trademarks Filed in November 15, 1979
FLEXILOK
Filed: November 15, 1979
Interlocking Concrete Sections for Lining Tunnels
Owned by: Spun Concrete Limited
Serial Number: 73239251
DANDO
Filed: November 15, 1979
Refractory Brick-Namely, Ladle Brick, High Alumina Ladle Brick, Universal Tilting Brick, Universal Starter Brick, and Bulk…
Owned by: Swank Refractories Company
Serial Number: 73239345
